Buried in my old stuff is some pictures I took, back when flying in the
winter in North Dakota. What's amazing about it is not only the
snow-covered ground, but that the horizon is a *hard* line. No haze.

When I flew in the San Francisco bay area, there was lots of haze from the
aerosols, etc, in the air. It was called an "articifical horizon."

Ed Wischmeyer